#include<stdio.h>


#define XNAME(n) "shangchao"#n
#define COMB(n) ADD##n



int ADD3(int a, int b, int c){
    return a + b + c;
}
int ADD2(int a, int b){
    return a + b;
}

int main(){
    printf("%s\n", XNAME(chao));
    printf("%d\n", COMB(3)(12,12,1234));
    return 0;
}